47 files declare their use of ItemInterface in Business Rules 8

ActionSet.php in src/Plugin/BusinessRulesAction/ActionSet.php

AddNodeToGroupAction.php in modules/br_group/src/Plugin/BusinessRulesAction/AddNodeToGroupAction.php

AddRoleToUser.php in src/Plugin/BusinessRulesAction/AddRoleToUser.php

AddUserToGroupAction.php in modules/br_group/src/Plugin/BusinessRulesAction/AddUserToGroupAction.php

AssignRoleToUserAction.php in modules/br_group/src/Plugin/BusinessRulesAction/AssignRoleToUserAction.php

BusinessRulesItemBase.php in src/Entity/BusinessRulesItemBase.php

BusinessRulesItemPluginBase.php in src/Plugin/BusinessRulesItemPluginBase.php

BusinessRulesItemPluginInterface.php in src/Plugin/BusinessRulesItemPluginInterface.php

BusinessRulesUtil.php in src/Util/BusinessRulesUtil.php

CalculateValue.php in src/Plugin/BusinessRulesAction/CalculateValue.php

ChangeFieldInfo.php in src/Plugin/BusinessRulesAction/ChangeFieldInfo.php

ChangeFormDisplay.php in src/Plugin/BusinessRulesAction/ChangeFormDisplay.php

CheckViewResultCount.php in src/Plugin/BusinessRulesCondition/CheckViewResultCount.php

CompareNumberOfResultsBetweenTwoViews.php in src/Plugin/BusinessRulesCondition/CompareNumberOfResultsBetweenTwoViews.php

ConditionSet.php in src/Plugin/BusinessRulesCondition/ConditionSet.php

CustomValueVariable.php in src/Plugin/BusinessRulesVariable/CustomValueVariable.php

DataComparison.php in src/Plugin/BusinessRulesCondition/DataComparison.php

DeleteEntity.php in src/Plugin/BusinessRulesAction/DeleteEntity.php

DisplayErrorMessageOnForm.php in src/Plugin/BusinessRulesAction/DisplayErrorMessageOnForm.php

EntityEmptyVariable.php in src/Plugin/BusinessRulesVariable/EntityEmptyVariable.php

EntityFieldVariable.php in src/Plugin/BusinessRulesVariable/EntityFieldVariable.php

FetchEntityVariableAction.php in src/Plugin/BusinessRulesAction/FetchEntityVariableAction.php

FillEntityVariableFields.php in src/Plugin/BusinessRulesAction/FillEntityVariableFields.php

GroupHasNodeCondition.php in modules/br_group/src/Plugin/BusinessRulesCondition/GroupHasNodeCondition.php

GroupHasUserCondition.php in modules/br_group/src/Plugin/BusinessRulesCondition/GroupHasUserCondition.php

LoopThroughFieldVariable.php in src/Plugin/BusinessRulesAction/LoopThroughFieldVariable.php

LoopThroughViewResult.php in src/Plugin/BusinessRulesAction/LoopThroughViewResult.php

PageRedirect.php in src/Plugin/BusinessRulesAction/PageRedirect.php

PublishContent.php in src/Plugin/BusinessRulesAction/PublishContent.php

RemoveNodeFromGroupAction.php in modules/br_group/src/Plugin/BusinessRulesAction/RemoveNodeFromGroupAction.php

RemoveRoleFromUserAction.php in modules/br_group/src/Plugin/BusinessRulesAction/RemoveRoleFromUserAction.php

RemoveUserFromGroupAction.php in modules/br_group/src/Plugin/BusinessRulesAction/RemoveUserFromGroupAction.php

RemoveUserRole.php in src/Plugin/BusinessRulesAction/RemoveUserRole.php

SaveEntityVariableAction.php in src/Plugin/BusinessRulesAction/SaveEntityVariableAction.php

ScheduleTask.php in src/Plugin/BusinessRulesAction/ScheduleTask.php

SendEmail.php in src/Plugin/BusinessRulesAction/SendEmail.php

SendSmsMessageAction.php in modules/br_sms/src/Plugin/BusinessRulesAction/SendSmsMessageAction.php

SetFieldValue.php in src/Plugin/BusinessRulesAction/SetFieldValue.php

ShowMessage.php in src/Plugin/BusinessRulesAction/ShowMessage.php

UnpublishContent.php in src/Plugin/BusinessRulesAction/UnpublishContent.php

UrlVariable.php in src/Plugin/BusinessRulesVariable/UrlVariable.php

UserHasRole.php in src/Plugin/BusinessRulesCondition/UserHasRole.php

UserHasRoleGroupCondition.php in modules/br_group/src/Plugin/BusinessRulesCondition/UserHasRoleGroupCondition.php

UserVariable.php in src/Plugin/BusinessRulesVariable/UserVariable.php

UserVariableHasRole.php in src/Plugin/BusinessRulesCondition/UserVariableHasRole.php

VariableDataComparison.php in src/Plugin/BusinessRulesCondition/VariableDataComparison.php

ViewResultVariable.php in src/Plugin/BusinessRulesVariable/ViewResultVariable.php